Johnston admits that some 3D conversions are turning out poorly primarily because studios are rushing the conversion process. "Conversion has gotten a bad rap," he told the site, "because of pictures that have done it badly. If you shoot the movie and decide at the 11th hour to convert it to 3D, you don't have the necessary information to process what we call the 'left eye'. We're shooting a whole separate pass on every setup to record the information necessary to convert to 3D in a seamless and undetectable way. When conversion is done right, you can't tell the difference between it and full 3D. Everyone touts Avatar as the new standard for 3D. It's beautifully done to be sure, but it wasn't entirely shot in full 3D. The filmmakers wisely chose to shoot about 30 to 35 percent of the picture in 2D and convert. I challenge anyone, myself included, to watch the picture and spot the 2D conversions."
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